78152468 has 48 divisors (see below), whose sum is σ = 149615424. Its totient is φ = 35581440.

The previous prime is 78152467. The next prime is 78152471. The reversal of 78152468 is 86425187.

It is a super-2 number, since 2×78152468² = 12215616508982048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78152467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344171 + ... + 344397.

It is an arithmetic number, because the mean of its divisors is an integer number (3116988).

Almost surely, 2^78152468 is an apocalyptic number.

It is an amenable number.

78152468 is a deficient number, since it is larger than the sum of its proper divisors (71462956).

78152468 is a wasteful number, since it uses less digits than its factorization.

78152468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 390 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 78152468 is about 8840.3884530036. The cubic root of 78152468 is about 427.5440817259.

The spelling of 78152468 in words is "seventy-eight million, one hundred fifty-two thousand, four hundred sixty-eight".